( 6-6-1986 )
A. G-Field Detector: Circuit # 130
B. Test Coil:
O-type telephone pick-up coil, many fine turns in 1/4" slot on about 2-1/2” mean diameter.
(1) Coil rotated vertically (as shown): very little effect on dc output level of detector (some effect).
(2) Coil rotated horizontally (as shown): very strong effects on dc output level of detector.
(1) Coil has little reaction from earth magnetic field.
(2) Coil has very strong reaction with g-fields of earth! The g-fields assume the nature of an H-field in these tests!